Fourier series: Coefficients of Fourier series
Piecewise continuous and smooth functions
Consider the piecewise defined real function \[f(x)=\begin{cases}\displaystyle {{5}\over{9 x +43}}+5 &\text{if }\displaystyle x\lt-5\\ \\ \displaystyle -7 x -5 &\text{if }\displaystyle -5\le x\lt10\\\\\displaystyle \sqrt{5 x +25} &\text{if } \displaystyle x\ge10 \end{cases} \]
Evaluate \(f(-4)\).
Evaluate \(f(-4)\).
| \(f(-4)=\) |
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